Blindsolving

I'm very interested in blindsolving. That is, first analyze/memorize a scrambled puzzle sighted, then solve it by twisting while being blindfolded. Also see the blindsolving records page on speedcubing.com. So far I've blindsolved these puzzles (in chronological order): 2x2, Skewb, Pyraminx, Clock, 3x3, Megaminx, 5x5, Super 5x5, Square-1, 4x4.

I did Megaminx right after 3x3 because I wanted to do something new. As far as I know, I was the first blindsolver of Megaminx, Super 5x5, Square-1, Skewb and Clock. For Square-1 and Megaminx I'm still the only one. I was also the first who blindsolved a 5x5 officially, i.e. in a WCA competition, though others had done it earlier (and faster) at home.